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RF (Wireless) Fundamentals 1- Day Seminar by bjb17276

VIEWS: 14 PAGES: 7

									                                                                              New Smyrna Beach, FL
                                                                              Phone: 386.478.1979
                                                                              Fax: 386.478.1760
                                                                              E-mail: admin@soft-test.com



                               RF (Wireless) Fundamentals
                                    1- Day Seminar

In addition to testing Digital, Mixed Signal, and Memory circuitry many Test and Product Engineers are
now faced with additional challenges: RF, Microwave and Wireless technology. This course is designed
to explain RF components, specifications, and test methodologies to engineers involved with testing of
RF circuits using Automated Test Equipment (ATE).

Like all Soft Test courses this RF course presents practical information, relating to test problems, test
programs, and test equipment. The information presented will enable you to better understand how the
various tests are implemented, the type of test hardware needed, and how to verify and trouble-shoot RF
test results.

The Course
This course is designed for engineers new to the field of microwave. It enables engineers to quickly
increase their understanding of microwave terminology, components and test. The course material
includes pictures and diagrams to help explain microwave technology in a clear and simplified manner
without the need of complex mathematics. Lecture subjects include RF Terminology, RF Components,
RF Device Models, Transmission Line Theory, S-Parameters, Smith Charts, and of course RF Test
Concepts and Test Hardware.

Who Should Attend
Test and Product Engineers, Engineering Managers, Sales Engineers, Service Engineers, and
Technicians have all benefited from this course.

When, Where & Cost
Soft Test offers training services at our Sunnyvale CA facility on a regular basis and we also offer on-
site training at your facility. Tuition is $595 per attendee and includes all course material. Give us a call
for additional information and class schedules or visit our web site at www.soft-test.com

Class Registration
Registration is available on-line at our web site or contact the East Coast sales office at 386 478-1979.
Email inquires to admin@soft-test.com

Summary
Many engineering skills can be learned on-the-job, but in the case of RF the more subtle issues are
best addressed directly with lecture and examples. Get a head start now by attending our RF
Fundamentals 1-day course.

There's More
Please visit our web site at for additional information and schedules for this course or download the
“Quiz” and see if this course is right for you. Soft Test also offers technical training and
publications for Digital Test, Mixed Signal Test, Memory Test and a variety of books and videos
related to the semiconductor industry.



  www.soft-test.com                         1-Day RF Test Fundamentals                          Page 1
                                                                           New Smyrna Beach, FL
                                                                           Phone: 386.478.1979
                                                                           Fax: 386.478.1760
                                                                           E-mail: admin@soft-test.com

                              RF (Wireless) Fundamentals
                                   1- Day Seminar

Course Length: 1-day
Purpose
The purpose of this course is to introduce the terminology, concepts, and techniques associated
with testing RF semiconductor circuits. The course begins by discussing RF components, moves to
transmission line theory, and then concentrates on RF test concepts.

Many digital, and mixed signal engineers are now faced with the task of testing integrated RF,
Microwave, and Wireless circuits. This course is designed to jump-start your understanding of RF
terminology, components, test hardware, and test methodologies.
Our Goal
Our goal is to provide useful information that will quickly improve the skill set required to be a
productive RF Test or Product Engineer. We present an environment where questions and
interactions are welcomed and everyone is treated with respect regardless of their experience level.

Content
   The course information presented includes the following:
   •    Microwaves and their special characteristics
   •    Popular acronyms used in microwave theory, testing and application
   •    Conversion of dB and dBm values
   •    Microwave devices and their functions
   •    Microwave devices within communication systems
   •    Transmission line theory and how it relates to microwave circuit design
   •    Relationships between propagation co-efficient, characteristic impedance, phase velocity,
        reflection coefficient, voltage standing wave ratios (VSWR) and transmission line theory
   •    Types of transmission lines
   •    The function and operation of various component of a microwave system
   •    Test methodologies for verifying scattering parameters
   •    Components and essence of Smith Charts
   •    Smith Chart calculations used to design microwave circuits
   •    Ways to compensate for impedance and admittance
   •    Common devices tested in the microwave frequencies
   •    Common tests performed on microwave devices
   •    Microwave instruments in the ATE environment

Distribution Materials
Handout of course slides and all classroom materials are provided with the course

Prerequisites
Students should have completed the Soft Test Digital Test Technology class or have equivalent
experience.


 www.soft-test.com                        1-Day RF Test Fundamentals                            Page 2
                                                                          New Smyrna Beach, FL
                                                                          Phone: 386.478.1979
                                                                          Fax: 386.478.1760
                                                                          E-mail: admin@soft-test.com




                                  RF (Wireless) Fundamentals
                                       1- Day Seminar

Course Outline: RF Fundamentals 1- Day
Introduction – RF Terminolgy
Freespace wavelength
The Electromagnetic Spectrum
Mirocwave Spectrum
Bandwidth / Channel
DB / dBc / dBm
Decibels / Linear / Logarithmic
Digital Modulation & Distortion
Down-converter / Conversion Loss / Dynamic Range
Noise Floor / Pad / EMI
Frequency Modulation and Accuracy
Types of Signal Modulation
Harmonic Signals
IF / Impedance / Intercept Point / IP3
Isolation / Isolators / Network Analyzer
Noise Figure / P1dB / Small Signal Gain
Spurious-Free Dynamic Range / S/N / SNR
THD / VSWR
FFT / DSP / LNA / BPF / LPF / HPF
Wireless Standards
Class Exercise

RF Components
Connectors / N / BNC / SMA / SMB / SMC / SSMA / OSSM / BMA / OSP / OSSP
3.5 and 1mm Connectors
Spectrum Analyzer
Terminators and Attenuators
Directional Couplers / Coupling Factor
Power Divider

Generic RF Device Models
RF Circuitry
Receive Path – low noise amplifier / mixer
Transmit Path – modulator and VGA

Transmission Line Theory and S-Parameter
Wave Analogy
Impedance
Transmission Line Termination
High Frequency Device Characterization
Scalar Transmission Measurements
Scalar Reflection Measurements
Reflection Coefficient / Return Loss

  www.soft-test.com                          1-Day RF Test Fundamentals                  Page 3
                                                                        New Smyrna Beach, FL
                                                                        Phone: 386.478.1979
                                                                        Fax: 386.478.1760
                                                                        E-mail: admin@soft-test.com

Standing Wave Ration
S-Parameters
Forward Measurement
Reverse Measurement
Class Exercise

Smith Chart Concepts
Overview of Smith Charts
Groups
Normalized
Impedance
Class Exercise

RF Test Concepts
Time Domain / Combining Sine Waves
Measurement Setups
Power Gain / Gain Measurements
Amplifier Compression / P1dB Measurement
Common Types of Noise / Noise Figures
Phase Noise / Phase Relationships
Power Spectral Density / VCO Measurements
Signal Matching
Distortion and Mixer Measurements
Intermodulation Distortion
Third Order Intercept
Converters and Tuners
Down-converting Mixer Measurements
Adjacent Channel Power Ratio (ACPR)
Measuring ACPR
Low-Noise Amplifier / Frequency Synthesizers

Bluetooth Concepts
SOC – Increasing Levels of Integration
Block Diagram
Bluetooth Transmitter / Receiver Tests
Bluetooth ATE Tester Requirements
Typical Test List
Bit Error Rate / Time Domain / Synthesizer Lock / Bandwidth

WLAN Concepts
What is WLAN
WLAN Standard
WLAN and Cellular
WLAN ATE test requirements
Test Parameters
Key Features
Measurements – 802.11a and 802.111b

Modulation
Wireless Communications
Transmitting / Modulation
Fundamentals
Demodulation Error Quantities
Frequency Errors / Amplitude Droop

  www.soft-test.com                        1-Day RF Test Fundamentals                  Page 4
                                                                        New Smyrna Beach, FL
                                                                        Phone: 386.478.1979
                                                                        Fax: 386.478.1760
                                                                        E-mail: admin@soft-test.com

Magnitude and Phase Errors – Making the Measurements
DUT Board Design, Fixturing and De-embedding
Fixturing Considerations
Test Head Fixtures
DUT Interface Fixtures
DUT Board Design Criteria
Materials and Board Fabrication
Contactors / Calibration / De-embedding
Standard Calibration vs. De-embedding

Test Head Configuration
Guidelines for Configuring the Test Head

Summary

Q&A




  www.soft-test.com                        1-Day RF Test Fundamentals                  Page 5
                                                                          New Smyrna Beach, FL
                                                                          Phone: 386.478.1979
                                                                          Fax: 386.478.1760
                                                                          E-mail: admin@soft-test.com


                     RF Fundamentals - Training Evaluation

    Name:                                               Date:


    1. Microwave signals usually transfer an electromagnet spectrum with a high wave length.
          a. True
          b. False

    2. If PdBm = 10 log(Vrms 2 × 20) , what is the power when Vpk = 0.3V?

            a. ~ -0.7 dBm                         b. ~ -0.5 dBm
            c. ~ 0.7 dBm                          d. ~ 0.5 dBm


    3. S-Parameter test is equivalent to continuity (contact) test in Digital world.
          a. True
          b. False

    4.   Referring to the table below, what is the power in dBm for 6mW?
                         X/10
                    10
                    mW          dBm

                     1.5        2

                     3.0        5

                     6.0        ?

                10 log 10 (x)


            a. 7 dBm                              b. 8 dBm
            c. 8 dBm                              d. 10 dBm

    5. A 20dB pad also refers to
          a. 20dB gain
          b. 20dB attenuator
          c. 20 dB loss
          d. 20dB reflection

    6. During characterization, suppose we get two readings from the same test of a device that
       varies by 3dBm. Is this acceptable?
           a. Yes
           b. No

www.soft-test.com                       1-Day RF Test Fundamentals                       Page 6
                                                                            New Smyrna Beach, FL
                                                                            Phone: 386.478.1979
                                                                            Fax: 386.478.1760
                                                                            E-mail: admin@soft-test.com


    7. A S21 parameter for a two-port network is also known as:
          a. forward voltage-gain
          b. reserve transfer coefficient
          c. input reflection coefficient
          d. All the above

    8. Smith Chart was traditionally used to
          a. solve lengthy complex equation graphically on the chart
          b. reduce the possible errors encountered during manual calculations
          c. translate the reflection coefficient into impedance
          d. All the above

    9. The gain measurement plot on the chart below can be used to determine
          a. 3dB bandwidth
          b. Minimum passband gain
          c. Gain flatness
          d. All the above

                    Gain




                               F                 F       Frequency
                                1                    2

    10. Usually the P1dB test is done after the regular gain test.
           a. True
           b. False

    11. Mixer are used to:
           a. convert one frequency to power at another frequency
           b. provide harmonic signals
           c. create multitone signals

    12. Third Order Intercept Point (IP3) cannot be measured. Why?

    13. Why is the ACPR test important for RF devices used in communication systems?

    14. What is function of the frequency synthesizer in an ATE machine?

    15. How might the test results be changed if there is an impedance mismatch on a RF circuit?


                           Answers at: http://www.soft-test.com/RF/answers.htm

www.soft-test.com                          1-Day RF Test Fundamentals                      Page 7

								
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